NOW Guar Gum is a thickening agent derived from guar beans that has enjoyed much use in various baking applications. Guar Gum is most commonly used when baking with whole grain flours that typically don\’t rise due to their lack of gluten. Guar gum is needed to improve the thickness of these flours, allowing them to rise as normal flour would. It is especially useful as a binder in gluten-free baking.